HONEYWELL VF526DT

DESCRIPTION
The VF526DT Bipolar Latch, Dual Hall-effect Digital Position
The VF526DT’s built-in temperature compensation is designed
Sensor has two distinct Hall sensing elements precisely
to match the temperature coefficient of low-cost magnets,
located 1,4 mm [0.055 in] apart on a single integrated circuit
allowing for a reliable, yet cost-effective, sensor-magnet
chip. The elements are encapsulated in a thermoset molding
combination.
material.
A unique, regulator circuit provides extremely stable operation
The two active Hall latches provide speed and direction
with supply voltages from 3.4 Vdc to 24 Vdc. It can directly
indication of a magnetic gradient (such as a rotating ring
interface with many electronic components without buffering or
magnet) across the face of the package.
compensation circuitry.
The miniature, 4-pin SOT-89B package surface mounts on PC
(Printed Circuit) boards and flexible circuits.
FEATURES AND BENEFITS
Temperature-compensated magnetics and ultra-low offset
drift with temperature provides a stable output over a full
POTENTIAL APPLICATIONS
Transportation
Anti-pinch electric motor control systems for:
temperature range of -40 °C to 125 °C [-40 °F to 257 °F].
power windows
Single, miniature 4-pin SOT-89B plastic package supplied
power seats (headrest)
on tape and reel for automated assembly, allowing
power sliding doors
potential savings in PC board space and labor cost.
Two separate built-in Hall sensors and their associated
sunroofs
Magnetic encoding for electronic steering systems
logic circuitry provide a frequency signal for speed output
and a logic level (high or low) signal for direction output,
potentially replacing multiple sensors and electronic
components.
Wide operating voltage range of 3.4 Vdc to 24 Vdc
increases application flexibility.
Tested to moisture sensitivity similar to JEDEC J-STD020B, MSL Level 1, allowing the VF526DT to be used in
environments where humidity may be a problem.
RoHS-compliant materials meet Directive 2002/95/EC.
Industrial
Motion control systems for pulleys and belts
Garage door openers and sliding doors
Position and velocity detection in industrial equipment
Linear displacement sensing (using a magnetic strip of
alternating poles)
Table 1. Absolute Maximum Ratings1
Characteristic
Sym.
Supply voltage
Vcc
Output voltage (OFF)
Vout
Output ON current
Iout
Storage temperature
Ts
Operating temperature
T
ESD:
IEC 801-2, Lev 1
ESD
MIL-STD-883, Method 3015.7
Magnetic flux
Min.
-0.5
-0.5
–
-65 [-85]
-40 [-40]
Max.
30
30
10
160 [320]
150 [302]
Unit
V
V
mA
°C [°F]
°C [°F]
2
4
–
–
KV
Note 1: Absolute maximum ratings are the
extreme limits that the device will withstand
without damage to the device. However, the
electrical and mechanical characteristics are not
guaranteed as the maximum limits (above
recommended operating conditions) are
approached, nor will the device necessarily
operate at absolute maximum ratings.
–
no limit
Table 2. Specifications
Characteristic
Sym.
Condition
Magnetic actuation type
Output type
Max.
Unit
24
Vdc
–
3.4
–
Temp
-40 [-40]
–
–
–
12
mA
–
–
14
mA
–
–
5
mA
–
–
0.4
V
–
–
5
µs
Circuit speed to direct delay
Td
Vcc = 3.4 V to 24 V
Vcc = 24 V, -40 °C < T < 125 °C,
Vout = 24 V, B<MIN REL
Vcc = 24 V, -40 °C < T < 125 °C,
Isink = 5 mA, B<MAX OP
Vcc = 24 V, -40 °C < T < 125 °C,
Isink = 5 mA, B<MAX OP
Vcc = 24 V, -40 °C < T < 125 °C,
Isink = 5 mA, B<MAX OP
Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF
Rise time
Tr
Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF
–
–
1.5
µs
Fall time
Tf
Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF
–
–
1.5
µs
Frequency
Top
Operate point
Bop
Release point
Brel
Differential (OP-REL)
Diff
Symmetry ([OP +REL]/2)
Sym
Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF
T = 25 °C
-40 °C < T < 125 °C
T = 25 °C
-40 °C < T < 125 °C
T = 25 °C
-40 °C < T < 125 °C
T = 25 °C
-40 °C < T < 125 °C
SOT-89B
<1
–
60
–
-60
–
200
–
-65
–
130
–
-130
–
260
–
0
–
>1000
–
200
–
-200
–
320
–
65
Hz
Gaus
s
Gaus
s
Gaus
s
Gaus
s
Supply current (OFF)
Ioff
Supply current (ON)
Ion
Load current
Isink
Output saturation
Vsat
Package style
similar to JEDEC J-STD-020B, MSL Level 1
Moisture sensitivity test
Package quantity
available in 1000/tape and reel
Figure 1. Output Timing Diagram
Td
Change
Direction
Td
SPEED
DIRECTION
Td
TIME
2
Typ.
Vcc
Supply voltage
Operating temperature
Min.
bipolar latch
dual open collector, sinking
(speed and direction)
www.honeywell.com/sensing
125 [257] °C [°F]
Figure 2. Sensor Function Diagram with Customer-Supplied Magnet
When the change in magnetic flux at Hall 1 leads
N
S
Hall 1
Hall 2
S
N
SPEED
OUTPUT
Trigger and
Amplifier
the change at Hall 2, the direction output is HIGH;
when it follows Hall 2, the direction output is LOW.
Trigger and
Amplifier
Logic
DIRECTION
OUTPUT
Figure 3. Mounting Dimensions (For reference only. mm/[in].)
Tape
Solder Pad
2,5
[0.098]
2,0
[0.079]
0,8
[0.031]
B
2,6
[0.102]
A
1
0,7 TYP
[0.028]
2
4,6
[0.181]
3
1,2
[0.047]
0,8 TYP
[0.031]
Honeywell Sensing and Control
3
Figure 3. Mounting Dimensions (continued)
Reel
Order Guide
Catalog Listing
VF526DT
Description
Bipolar latch, dual hall-effect digital position sensor with speed and direction outputs, on tape and reel
(1000 pcs per reel)
WARNING
WARNING
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result
in death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective. The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result
in death or serious injury.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail: [email protected]
Internet: www.honeywell.com/sensing
Phone and Fax:
Asia Pacific
+65 6355-2828
+65 6445-3033 Fax
Europe
+44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America
+1-305-805-8188
+1-305-883-8257 Fax
USA/Canada
+1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com/sensing
005870-2-EN IL50 GLO Printed in USA
December 2009
© 2009 Honeywell International Inc. All rights reserved.